Home / 1,315,719.56-1,815,736.92-806,323.52

Finding the Fourth Proportional to 1,315,719.56, 1,815,736.92 and 806,323.52

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Solution

The fourth proportional to 1,315,719.56, 1,815,736.92 and 806,323.52 is: 1,112,753.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,719.56 : 1,815,736.92 = 806,323.52 : x
  2. Step 2: Convert to fraction form
    1,315,719.56/1,815,736.92 = 806,323.52/x
  3. Step 3: Cross multiply
    1,315,719.56x = 1,815,736.92 × 806,323.52
  4. Step 4: Simplify right side
    1,315,719.56x = 1,464,071,384,728.36
  5. Step 5: Solve for x
    x = 1,464,071,384,728.36/1,315,719.56
  6. Step 6: Final answer
    x = 1,112,753.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.